We're following breaking news in the search for serial -- as police question a person of interest in the murders of three shopkeepers and Brooklyn detectives are taking a close look at a gun that was recovered early this morning. Eyewitness News reporter -- Gonzales following the very latest force live outside the 67 precinct in Flatbush Marcy. I -- ABC news has learned they're still trying to determine if that is the murder weapon. But they say it is a 22 caliber that's the same type of gun used in all three murders. I just want I'm -- items they found in this man's duffel bag. Police say this is the 63 year old person of interest. The same man shown in surveillance video carrying a duffel bag walking near the scene of the most recent murder Friday night. Police are outside of the man's home right now on Staten Island. Looking for more evidence this after ABC news alert officers also found him with ammo gloves winning stockings. And two knives one of which they say appears to have blood on it. Police took him into custody without issue last night after residents in bay ridge spotted him and recognize him run this surveillance video we've been showing you. Now he has not been charged but is a person of interest in the murders of three Brooklyn store owners. And we've learned the man who still has not been named works as a clothing salesman we've also learned he has prior arrests in Pennsylvania for burglary harassment and stalking.

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